A057833 Numbers n such that n | 13^n + 11^n + 9^n + 7^n + 5^n + 3^n +1.

1, 7, 49, 343, 539, 2401, 2429, 4169, 16807, 36197, 81977, 117649, 160867, 314531, 823543, 1226911, 1294139, 4751579, 5764801

Offset

1,2

Links

Table of n, a(n) for n=1..19.

Mathematica

Select[ Range[ 10^7 ], Mod[ PowerMod[ 13, #, # ] + PowerMod[ 11, #, # ] + PowerMod[ 9, #, # ] + PowerMod[ 7, #, # ] + PowerMod[ 5, #, # ] + PowerMod[ 3, #, # ] + 1, # ] == 0 & ]

Crossrefs

Sequence in context: A328086 A216129 A057266 * A014949 A228738 A057845

Adjacent sequences: A057830 A057831 A057832 * A057834 A057835 A057836

Keyword

nonn

Author

Robert G. Wilson v, Nov 08 2000

Status

approved